In the ingredient descriptions: Good means that I like to see this in a product's list of ingredients. Okay means this product appears safe for a curly person like me to use. Caution means that this ingredient may not be good in some hair care products, or for some people. Avoid means this ingredient may hurt your hair. If you see this ingredient in a hair product, it's best to put it down and walk away.

Methylparaben(aka Methyl paraben)Okay
A widely used preservatives in cosmetics. It wipes out a wide array of microbes including molds yeast and bacteria over a wide pH range. It's considered pretty mild. It's a white, odorless powder which somewhat dissolves in water. According to Hunting, it is the most water soluble paraben , but has the least antibacterial activity. Therefore, it's often combined with propylparaben, and the two work well together. It's deactivated by nonionic surfactants (such as decyl glucoside, lauryl glucoside, or
octyl glucoside, among others) [Hunting (Conditioning) page 277-278; Winter (7th edition) page 351].
See also:PropylparabenSource(s): Hunting Winter